Just curious, if you had unlimited processing power, would it be easier to use it for mining or (after having found a nice public key) trying to work out the private key? Presumably you could spam transactions with an infinite number of private keys and one of them would eventually work. Is there any safeguards against this?  Against unlimited procecssing power? Nope, nothing, but the boundaries of this universe. |
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-snip-
Yeah, creating a new wallet and transfer the coins to that one would be good if the wallet file gets in someone elses hand that shouldn't have it. Although as you say, they can't do much without the password or the seed.
So with electrum we don't need to back up the file as long as we have the seed because we can re-create the wallet by typing in the seed. But for other wallets, back up of the wallet file is necessary.
Correct. E.g. I do regular backups of my bitcoin core wallet.dat even though it has 100 pregenerated addresses. Even if one of the backups fail, I still have at least one more that is still recent. But would you recomend to put a locker on the whole file? Just in case. Because sometimes even when downloading something, you are not 100% sure if it contains virus or malware or not, even though you can read the comments for the file etc. But I assume a random virus that's not coded to log or steal bitcoins, wouldn't do any harm to a wallet, so ideally it could be safe to operate the wallet while having a virus, am I right?
Id recommend not to download random stuff that might contain a virus, but thats easier said than done. You can encrypt the file, but if your system is infected with a virus it is not safe to operate the wallet regardless of the additional encryption. If the virus is not looking for bitcoin related information, but only for e.g. CC information you might be fine anyway. What the additional encryption of the folder or file would help with is the following scenario: You did not use your wallet durring the current session your machine is running, install some sort of malware or get infected by it that somehow tricks you into entering your password, but since it cant find the wallet file it is unable to do anything with it and you have a chance to safe your bitcoin on a different machine. In a way you allready have a very similar protection machanism with your external disk. As long as its not connected to your machine, a virus is unable to find the files needed and even if you entered the password you could still safe your coins. What do you mean about that the next virus could attack my electrum wallet when I am decrypting my folder, if I am using an external harddrive? Because if I do use an external harddrive, I would probably make sure that my coins are safe on another computer, and hopefully that one won't have virus or malware or trojan or anything like that.
What I meant was: if you use your wallet while infected you have to #1 connect the external drive #2 decrypt the folder #3 enter the password if the virus is sneaky enough so you do not notice it while using your wallet you gain no advantage by adding an extra layer of encryption to your folder/wallet file. But if I am connecting my external harddrive to my own computer while it's infected, and I try to decrypt the folder, its no point in having a decryption then because with or without decryption, they will see my password once I type it in.
My point exactly. Can a virus or trojan infect an external harddrive when you connect it to a computer thats infected? It sound like it should, so I am not even sure why I am asking tho.
It can yes. Recent revelations show that intelligent agencies are able to infect certain USB devices on a hardware level. Spreading via external devices is an old technique. Before the internet it was the only way for a virus to spread, from floppy to floppy one machine at a time. This behaviour might return to reach offline wallets. And another question, would you rather have two electrum wallets with your bitcoins or just one? It would be smarter to have two wallets, but a bit more jobs with saving the seed, even though it's not that hard.
It depends on the amount of bitcoins and how much that is to you. With a small amount of BTC Id be fine with a single wallet. With more than a months salary a cold wallet would be in order. Not necessary two versions of electrum but e.g. armoy cold and hot and an electrum wallet for smaller amounts that are used more often. Since armory is pretty heavy - needs fully synced bitcoin core as well as a database of its own thats eating even more space - you might consider paper or hardware wallets for long term storrage. I also played around with old phones for a while as cold storrage, but I allways had this nagging feeling that they might "call home". |
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Actually I downloaded and extracted the zip file, and it was inside that. I meant to choose the 64 bit exe, but my mouse is fucked up, so it double/triple clicks all over the place sometimes.
That doesnt sound right. Mind sharing the full virus report? |
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PS: another option would be to use VPNs for each node, but you would still be limited by your ISPs bandwith.
Thanks, Shore. I am more than fine with my ISP's bandwidth limitations. So what of this VPN option? I have PIA for my VPN service (with up to four connections on the account), and I can find my connecting address on any of my computers by using speedtest.net For example, one computer right now is showing a VPN connection on 66.55.144.250, via Choopa LLC in London. Is there some way I can use this (or other information) to set up and run a beneficial full node on a second computer? Not sure how your VPN Serivce handles this, but the basic idea is: Start the machine (A), connect to VPN (VPN_A) with that machine (do not use the router), start bitcoind afterwards. This would result in A to have the external IP of VPN_A. Youd have to configure the VPN in a way to either just forward everything to the connected client and configure the local firewall as if it was a internet server or configure that port 8333 will be forwarded on VPN_A to machine A. Machine B could connect normally via your router and machine C would use VPN_C, this can be the same service as long as the external IP is different and the service allows you to either just dump all incomming traffic on the client or configure portforwarding based on the clients ID. Another way would be to use the Tor proxy for one of the nodes. AFAIK this has similar results as the VPN. The question of Foxpup still stands though. A single big node is as beneficial as 2 smaller nodes IMHO. |
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Dank derails pretty much every thread he posts in, it's very annoying.
I don't know if he really has mental issues or if he's just trolling, but in the end it doesn't matter, the end result is the same.
He even derailed this thread, even though he has not written a single word. Can we move this in the pharmacy section please? |
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So they can just steal my wallet file, and put it inside another wallet of their choise, like it doesn't have to be electrum, and then they are not able to spend/move my bitcoins right?
Kinda. The wallet files are rarely compatible, but if someone has your file they can figure out which software its for, open it and not (!) spend your coins. It would act the same as your copy and upon spending ask for the password. If this is the case, I shouldn't be worried about the wallet file, and if someone steals it, they can't do anything with it because they dont have my password or seed?
Correct. Just because I am a bit paranoid Id still create a new wallet and make a final TX moving all the coins from the old wallet to the new one. As long as your password is strong enough this is not needed though. But why is then everybody saying protect and backup your wallet etc..
Because files get corrupted sometimes if you only have one file there is a single point of failure. I read about a father that lost plenty coins from a mobile wallet because the kids needed space for their games and hit the "delete appdata"-button for dads wallet. So the backups are to protect against other things that can go wrong besides beeing attacked. The great thing about Electrum is that it only ever needs the seed. Your suggestion of seucurity seems like a bit advanced to me, although I kind of understand what you mean.
But my wallet is on my external harddrive. If I set a password lock/encryption to the whole folder, it will make the security level go up a little bit, which is good I guess.
I cant deny that it would increase security. A few days ago I read a thread here which is now deleted, but the op linked to a website. And it said that I didn't have flash installed, so I was not thinking more than I should, and tried to download the file and install it. I already even had flash on my computer so I don't know why I did that. Later on I get a message on my screen saying electrum password expired! change it. And I didn't even had my external harddrive connected to my PC. And how they knew I used electrum, not sure.
Usually there are some file that indicate which wallet you arw using even though the data is storred externally. And then I realised it was some kind of trojan/malware, and I also looked in the thread and some more users confirmed this. So I deleted it and checked that my coins were safe on my computer at a later point, and they were.
You dodged a bullet there. But imagine if I had my external harddrive connected to my computer at that point, what could of happen? Could the malware just see my password and take my coins, or would it log me when I type my password, and then transfer the coins to themself? With your password the virus could either send the coins directly with your copy of electrum or send the file with the password to someone else to do this manually. Depends how "well" the virus is written. I guess it's better to have electrum on a external harddrive rather than on the computer it self. Becuase you could always check that your coins are safe in another computer, thats not infected with virus/trojan or malware, and then proceed to clean the computer. Yes. I have to admit I never thought about it like this. I think you learned the "dont download random stuff" lesson. Yet the next virus might be attacking when you have your folder decrypted. This is where I think the idea might lead to a false sense of security. Btw, I appreciate the time you take to help me understand this whole thing!
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The bigger question is, what are you really trying to do? Running two Bitcoin nodes on a single public IP is a strange configuration, and I'm not sure how such a configuration would be useful. Asked and answered: "I want to run a full node of bitcoind on two or more computers that I have on my home network." Why support the network by running a full node on only one computer, if I have more than one computer on my network, all running 24/7 and capable of running their own instance of bitcoind? Aren't two or three or four contributing full nodes better than one? That shouldn't be a "strange configuration" for a lot of folks hereabouts, unless it's impossible to set up. More than one node per external IP is not helping and while its possible with custom ports, I think its better you run a single node with as much connections as the line can handle than multiple nodes that have the same IP. PS: another option would be to use VPNs for each node, but you would still be limited by your ISPs bandwith. |
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Oh good thanks, looks like I've thought everything through correctly, nervous as hell about getting it wrong because they're all worth something now  it will transfer all my addresses too won't it? Yes, it also has all the labels to the addresses as well as a history of your TX. It will look a bit strange durring the sync process, but once the client is fully synced its like it was before. |
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Yes, for bitcoin core just copy the wallet.dat and place it in the correct folder after you installed bitcoin core on the new machine.
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Früher war das wohl nicht so mit den 14 Tagen, habe hier aber im forum auch von jemandem gelesen, der das gleiche Problem hatte. Was soll der Mist auch mit den 14 Tagen...das ist doch totaler Quatsch irgendwie.  nein das ist kein quatsch  einfach mal drüber nachdenken, was es so an überweisungsbetrügereien geben kann Vermutlich bist du aber noch zu neu. Also sei im internet immer wachsam. Es gibt seeehr viele Betrüger. Und davor schützt diese 14tage frist. Zwar nicht 100% sicher, aber immerhin. ja, ich seh das ja auch auf eine Art ein, es ist nur so, dass ich die Bitcoins recht schnell bräuchte. Und das geht halt nicht mit der 14 Tage Frist. *Sfz* Am schnellsten geht Bargeld und einen entsprechenden Preis zahlen. Das sind meist so ca. 5% über dem aktuellen Kurs bei den üblichen Börsen. |
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I voted to stickie
However,
4. No referral code (ref link)
Its sad the children have ruined this in the way they did.
You can post ref links but only if it's relevant to the thread. Ie if someone asks what is the best dicesite people can post their ref links for PrimeDice or whatever. Ref links can also go in the signature. |
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Please! keep the dramaqueen out. I am not even sure I understand your problem - the technical one, I dont give a fuck about how long you mined, your "status" or what you need your coins for - and frankly, I dont care to read through the wall of drama to figure out. The last few posts derailed this thread and if you need further help with bitcoin core I suggest you start a thread in the tech support section and keep it technical.
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I call bullshit unless OP can provide
#1 an address that actually holds >20 BTC with a signed message that says that OP controlls it
#2 a reasonable explanation why the bug should be in a while loop and how OP figured this out just by playing
until then I consider OP a scammer and this a bad attempt to lure people to deposit on his site.
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-snip-
Maybe I am not explaining to well, or I don't understand how it really works. I have my electrum wallet inside a folder named folder A. Inside folder A is another folder created by electrum. In that folder is my wallet file.
Yep. I just want to protect that wallet file and the folder it is stored in the best possible way.
Great. But can someone who for example have access to my wallet file, load up the file in another wallet and move my bitcoins to themself? Or do they still need my password I have for electrum?
Yes, without the password they can see your balance etc, information about the transactions you received. But without the password or(!) the seed, the coins can not be spend. The seed allows you to create a new wallet (without password) with the same private keys. The password unlocks the allready existing private keys. I want to protect it just in case. And thats why I asked about some encryption or something like axcrypt or folder lock. But will the protection of the folder be necessary? Or how do you suggest to do it?
In my personal opinion it is not helping if you encrypt the folder. The file is encrypted allready, if you wanted to add another layer, Id suggest you protect the system itself BIOS&boot password, fully encrypted disk or at least protect the user account that has access to the file by setting a userpassword if you dont have one allready. All these methods would protect the folder as well as the file inside it indirectly, as anyone that would have access to your machine would need at least one of those passwords to operate it or time. E.g. if you only set a userpassword this can be circumvented by booting from an external device and extract the data that way. If you also have a boot & bios password, its not possible to boot from an external device, so an attacker would have to dismantle the machine and remove the harddisk. Once the harddisk is in another machine the file can be read. If the harddisk is also encrypted, well sucks to try and steal your bitcoin. You are still vulnerable to viruses / keyloggers, social engeneering as well the 5$ wrench and drugs attack [1] however. A encrypted folder would also buy you more time to notice something is wrong, but it would also result in manual steps. You would have to decrypt the folder with a tool, start electrum, do what you want to do, close electrum, encrypt the folder with a tool. While an encrypted disk can be handled by your OS automatically (besides entering the password ofc). I know this works perfectly fine on a linux machine and suspect its also possible for Windows and MacOS nowadays.  [1] https://xkcd.com/538/ |
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-snip-
Answers or suggestions?
Launch with -connect=IP to a fast node for the rest. For windows hit Win+R to open the "run" window: enter: c:\Program Files\Bitcoin\bitcoin-qt.exe -connect=IPchange the IP to one from the list, the path as needed and click ok. For linux, open a terminal and enter bitcoind -connect=IPchange the IP and on some distros you have to give the full path to bitcoind. Note, this will not launch a GUI, use bitcoind getinfo so see the status. or run bitcoin-qt instead of bitcoind for GUI. Once synced, close bitcoin core and launch as usual. List of possible nodes: last updated 2014.11.25
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IP - location - owner[1] - speed - info/stats page[2] - testnet
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eldinhadzic.org[4] - LA, USA - eldinhadz - 1000 mbit/s - no - no
84.200.34.113 - Freinsheim, DE, EU - Newar - 1000 mbit/s - yes - no
185.45.192.129 - Amsterdam, NL, EU - anon - 1000 mbit/s - /node.php[3] - yes
213.165.91.169 - Germany, EU - shorena - 100 mbit/s - yes - no
50.7.68.180 - New York, USA - Newar - 100 mbit/s - yes - no
5.9.24.81 - Germany, EU - zvs - unknown - no - no
178.79.173.71 - United Kingdom, EU - zvs - unknown - no - no
107.155.104.194 - Dalls, USA - zvs - unknown - no - no
106.185.32.195 - Japan, Asia - zvs - unknown - no - no
94.242.57.173 - Russia, Asia - zvs - unknown - no - no
-------------------------------------------------------------------------------------------------
[1] refers to a bitcointalk.org username or anon if requested
[2] same IP, port 80 or path/port given
[3] work in progress
[4] IP is 173.236.158.177
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Everything we do in live is a gradual process and even if first we are all scared of it or we take it as a joke, in the end we accept it and we think "yey this was the beste thing".  I think BTC are something more for the future and like we use money to get credit for our phone we could use BTC to call of course with the internet ( i don't think the internet will go away any time soon  ) I dont think they laughed at your post because they think its a stupid idea to pay for telephone service with bitcoin, but because they did not understand your post. Maybe you could ask in the local section for your language. |
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Danke für eure Antworten. Hat auf jeden Fall dazu beigetragen, dass ich nun ein bißchen besser durchblicke...
Mal angenommen ich suche mir hier jemanden und frage an, ob derjenige mir Bitcoins verkauft..ist das dann auch so, wie bei diesen Seiten bitcoins.de zb...dass man dann innerhalb 1 Std den Betrag an die Person überwiesen haben muss?
Das lässt sich individuell klären. Ist ja ein Mensch am anderen Ende. Wenn der Dir 3 Tage Zeit gibt, hast Du 3 Tage Zeit. Und wie bezahlt man denjenigen überlicherweise, wenn man hier bitcoins von jemandem kauft? Ist das egal, wie ich ihn dann bezahle...paypal, Banküberweisung etc...? Also die Zahlart.
Paypal ist ungern gesehen, da bis zu 180 Tage die Gefahr einer Rückbuchung besteht und Paypal "Währungshandel" explizit ausgeschlossen hat. Üblich ist sonst so ziemlich alles was möglichst schwer zurückzubuchen ist. Banküberweisung, Bargeld, Moneypak (eher international), Paysafecards, Amazon Gutscheine, Steam Guthaben, etc. pp. |
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how to get my private keys from android hive wallet backup?
I want to sweep the balance from my android hive wallet,
it exports a password protected wallet backup.
From here how to extract the private keys?
Thanks for your time.
I know this is not an answer to your question, but it would be easier and more secure to just make a transaction to your new wallet. Other than that, you might find an answer here [1] [1] https://github.com/hivewallet/discussions/wiki |
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